When it comes to steel production, we may think of huge energy consumption and huge sewage discharge.
There seems to be a sense that heavy industry is bad for the environment.
But is this really the case？
1.Are steel materials an environmentally friendly and sustainable materials?
Yes. Steel is fully recyclable and very durable. Compared with other materials, steel production requires little energy. Energy consumption and carbon dioxide emissions have fallen to 40% of what they were in 1960. Dust emissions are reduced even more significantly.Over the past few decades, the steel industry has made great efforts to reduce environmental pollution.
2.Can steel materials be recycled?
Sure. The unique magnetic properties of steel materials make it easy to separate from the waste stream for recycling. Steel materials can be recycled infinitely without damaging its original properties.For example, the Electric Arc Furnace (EAF) steel making process can use only recycled scrap for steel production. The blast furnace-converter process can use up to 30% scrap.
So you can fully trust KATALOR steel, the steel plates we produce are not only high quality, but also we have been pursuing environmental protection production.ASTM A709 Grade 50W is one of the products we make unremitting efforts to produce:
ASTM A709 Grade 50W low alloy weathering steel plates are famous for their property in atmosphere corrosion resistance. They are suitable for steel structure, especially construction and engineering machinery parts with good weldability and toughness.
ASTM A709 Grade 50W low alloy weathering steel plates chemical composition and mechanical properties:
|
Chemical composition % |
|
C |
Si |
Mn |
P |
S |
V |
Cu |
Ni |
Cr |
|
≤0.20 |
0.15-0.50 |
0.75-1.35 |
≤0.04 |
≤0.05 |
0.02-0.10 |
0.25-0.40 |
≤0.40 |
0.40-0.65 |
|
Mechanical properties |
|
|
Yield Strength |
Tensile Strength |
Elongation in 2 in. |
|
≧345 Mpa |
≧485 Mpa |
≧21 % |
